How far away can a sonic boom be heard? The intensity of a sonic boom can vary depending on several factors, including the size and shape of an aircraft, exactly how fast it is moving and whether it makes turns along its trajectory. But the altitude of the aircraft is key, sin...
Sound doesn't travel very far — maybe a mile at the most. Almost everyone can hear sounds, so a "sound radar" would definitely disturb the neighbors (you can eliminate most of this problem by usingultrasoundinstead of audible sound). ...
Until a wave reaches the fibers with a resonant frequency, it doesn't move the basilar membrane a whole lot. But when the wave finally does reach the resonant point, the membrane suddenly releases a burst of energy in that area. This energy is strong enough to move the organ of corti ha...
How does it rise to a higher altitude or dive back toward the ground? First, let's consider the angle of attack, the angle that a wing (or airfoil) presents to oncoming air. The greater the angle of attack, the greater the lift. The smaller the angle, the less lift. Interestingly ...
It's astonishing how much is involved in the hearing process, and it's even more amazing that all these processes take place in such a small area of the body. How Hearing Works FAQ How does sound travel through the ear? Sound waves enter the ear canal and vibrate the eardrum. When ...
It's astonishing how much is involved in the hearing process, and it's even more amazing that all these processes take place in such a small area of the body. How Hearing Works FAQ How does sound travel through the ear? Sound waves enter the ear canal and vibrate the eardrum. When ...
The evacuation slide: No one wants to abandon an airplane before landing, so if it's possible, pilots attempt to regain control or at least achieve a crash landing. At this point, you generally want to flee as far from the damaged airplane as possible. This is where the evacuation slide...
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The operator followed United Airlines' 50-unit-deal with an order of 60. While there are clear speed benefits to be had with the supersonic airliner, Boom is intent on ushering in an age of sustainable high-speed travel.Plenty to consider The Mach 1.7 Overture is being touted to serve ...
Rocket-powered and shrouded in secrecy, X-planes helped pave the way for the US space programme: Now they have another mission – taking the boom out of supersonic travel.以火箭为动力,高度保密的X系列飞行器为美国太空计划铺平了道路,现在,它们有了另外一项任务:实现超音速旅行 ...